Plate straightening machine



July 28,1936. F. UNVGERER 2 PLATE STRAIGH'I'ENING MACHINE Filed Au 511934 2 sheets-sheet 1 Z y 5 1 a 0 a 4 A 0 A, F I l I 1 July 28, 1936.

F.1JP4G5EFZEFZ PLATE STRAIGHTENING MACHINE Filed Aug 31, 1934 2Sheets-Sheet 2 Patented July 28, 1.936

""UNITED STATES. PATENT. oFF cE rum smzme momma:

Fritz Ungerer, 'rrmnam, Germany sprung August 1 1934. magm -142,265 U 5mm. (01. 158-54) v This invention relates to an adjustable supportingdevice for the straightening rolls of plate straightening machines, inwhich. the adjusting means for the supporting rollers provided along thestraightening rolls for deflecting these rolls towards or away from thematerial to be straightened can travel into the supporting positionalong paths of different lengths.

The invention relates to a supporting device of this type but with theimprovement that the adjusting means for the supporting rollers can bebrought into the supporting position separately and independently fromother existing rollers whilst the machine is running, and that furtherthe supporting of the row of straightening rolls to be deflected iseffected not only by a single pair'of rows of supporting rollersarranged symmetrically to the middle of the straightening rolls but bymore than two rows of supporting rollers situated as close as possibleside by side along the row of straightening rolls.

By the invention it is possible, without interruption of service, to acton the straightening rolls at more points than heretofore and to anydesired degree so that the shape of these rolls can be much betteradapted to the straightening requirements of the individual plates.

Two embodiments of the'invention are illustrated by way of example inthe accompanying drawings in which:-

Fig. 1 shows in front elevation a plate straightening machine withsupporting rollers adjustable in rows.

Fig; 2 shows in front elevation a row of supporting rollers according tothe first form of construction, with adjusting means.

Fig. 3 is a side elevation of Fig. 2. Fig. 4 is a diagrammatic viewshowing the effeet of the adjusting means of the first form ofconstruction.- I

Fig. 5 shows in front elevation a straightening machine with supportingrollers adapted to be.

adjusted in rows at an angle. Fig.- 6 is a top plan view of theadjusting means of the second form of construction.

Fig. 7 shows in front elevation a bearing mem her for the supportingrollers with adjusting means. Fig. 8 is a side elevation of Fig. I.

Fig. 9 is a cross section through the straightening rolls withsupporting rollers and Fig. 10 is a diagrammatic view showing the efiectof the adjusting means of the second form of construction.

Fig. 11 showsin side elevation a row of supporting rollers dividedinto-sections with separate adjusting means for each section.

Uprights a; are mounted on a box base and upper and lower straighteningrolls b are jour- 5 naled in these uprights. These rolls are supportedby supporting rollers c and d, the upper rollers 0 being carried inknown manner in a yoke member not shown in the drawings, so that they'participate in the adjusting move- 10 ments of the member, whereas thelower rollers d are mounted in rows in bearing members e1 resting onslide surfaces of the bearing feet e (Figs. 2 and '1). These bearingfeet are mounted directly on screw spindles], which can be turned 15 bymeans of worm gearings y. 01 in the nuts it supported on the box base a.The worm gear-- ings 9, 91 are driven by means of a shaft 0 which isrotated bya hand wheel 01. Each worm gearing y, 01 can be coupled withthe driving shaft 0 independently of the others. For this purpose asystem of levers k, m, n is provided for engaging and disengaging clawclutches i. According to the direction in which the shaft 0 rotates thescrew spindles f coupled therewith are screwed :5 into or out of thenuts h and consequently the bearing feet e andbearing members e1 arelowered or raised.

In. the example illustrated in Figs. 1 to 4 the lowering or raising of abearing foot e causes at 30 the same time a horizontal lowering orraising of a whole row of supporting rollers on every bearing foot e,-as the bearing members er of the same row of supporting rollers rest.Theeffect of this form of constructionis therefore that any 35 desiredrow of supporting rollers'can be raised or lowered any desired distanceindependently of .the other rows of supporting rollers by engaging itsassociate clutch 2'. Thus, for example in the diagram of Fig. 4, thefirst and fifth rows 40 of supporting rollers, counted from the handwheel side of the machine are raised relative to the remaining rows ofsupporting rollers, resulting in a deflection of the row ofstraightening rolls in the shape indicated in an exaggerated manner.

In the form of construction illustrated in Figs.- 5 to 10 the raisingand lowering of a bearing foot e does not cause a horizontal but a onesided lowering or raising of one of the two outer or of the 50 two innerrows of supporting rollers, as two bearing members e1 of two adjacentrows of supporting rollers always rest on the inner bearing feet e. Itis therefore possible, to adjust in roof-shape or in pattern shape evitwo adjacent rows of 55 -ISO supporting rollers relative to the rows ofstraightening rolls. Thus, for example in the diagram shown in Fig. 10,the outer pairs of supporting rollers are always adjusted in roof shape,thus causing during the straightening of a plate a stretching of twolateral longitudinal sections. The clutch controlling mechanism k forcoupling the adjusting means I separately or jointly with the commonhand wheel shaft 0 for these means is advantageously arranged laterallyon the machine frame a, a1 preferably near the handle or of the shaft 0.

It is. not necessary to act with one and the same adjusting means upon awhole row of sup porting rollers but the rows of supporting rollers maybe subdivided and the parts thereof supported individually byseparateadjusting means as shown in Fig. 11.

I claim:'-

1. An adjustable supporting device for the straightening rolls of platestraightening machines, in which the adjusting means for thesupportingrollers arranged for the purpose of flexing towards or awayfrom the material to be straightened, along the straightening rolls, canmove into the supporting position along paths of different length,comprising in combination with the rows of supporting rollers and therows of straightening rolls, means for adjusting some of thesesupporting rollers during the. service and without interrupting thepassage of the plates separately and independently of the othersupporting rollers, the supporting of the row of straightening rolls tobe flexed being effected by more than two rows of supporting rollerssituated close together.

2. An adjustable supporting device for the straightening rolls of platestraightening machines, in which the adjusting means for the supportingrollers arranged for the purpose of flexing towards or away from thematerial to be straightened, along the straightening rolls, can moveinto the supporting position along paths of different length, comprisingin combination with the rows of supporting rollers and the rows ofstraightening rolls, means for adjusting some'of these supportingrollers duringthe service and without interrupting the passage of theplates separately and independently of the means for adjusting the othersupporting rollers, the supporting of the row of straightening rolls tobe flexed being effected by more than two rows of supporting rollerssituated close together, each of the several rows of supporting rollersarranged side by side along a row of straightening rolls beingseparately raised and lowered any desired distance relative to itsassociate row of straightening rolls. I

3. An adjustable supporting device for the straightening rolls of platestraightening machines, in which the adjusting means for the supportingrollers arranged for the purpose of flexing towards or away from thematerial to be straightened, along the straightening rolls, can moveinto the supporting position along paths of different length, comprisingin combination with the rows of supporting rollers and the rows ofstraightening rolls. means for adjusting some of these supportingrollers during the service and without interrupting the passage of theplates adjusting the other supporting rollers, the supflexed beingeffected by more than two rows of supporting rollers situated closetogether every two adjacent rows of supporting rollers of the severalrows of supporting rollers situated side by side along a row ofstraightening-rolls being adjusted in roof-shape and in gutter shaperelative to its row of straightening rolls.

4. An adjustable supporting device for the straightening rolls of platestraightening machines, in which the adjusting means for the supportingrollers arranged for the purpose of flexing towards or away from thematerial to be straightened, along the straightening rolls, can moveinto the supporting position along paths of different length, comprisingin combination with the rows of supporting rollers and the rows ofstraightening rolls, means for adjusting some of these supportingrollers during the service and without interrupting the passage of theplates separately and independently of the means for adjusting the othersupporting rollers, the supporting of the row of straightening rolls tobe flexed being effected by more than two rows of supporting rollerssituated close together, a common shaft for the adjusting means, a handwheel a on said shaft at the side of said machine frame,

and means for coupling said adjusting means individually and jointlywith said shaft arranged laterally on said machine frame preferably nearsaid hand wheel.

5. An adjustable supporting device for the straightening rolls of "platestraightening machines, in which the adjusting means for the supportingrollers arranged for the purpose of flexing towards or away from thematerial to be straightened along the straightening rolls, can move intothe supporting position along paths of different length, comprising-incombination with the rows of supporting rollers and the rows ofstraightening rolls, means for adjusting some of these supportingrollers during the service and without interrupting the passage of theplates separately and independently of the means for adjusting the othersupporting rollers, the supporting of the row of straightening rolls tobe flexed being effected by more than two rows of supporting rollerssituated close together, in

combination with the machine frame, a common shaft for the adjustingmeans, a hand wheel on said shaft at the side of said machine frame, and

means for coupling said adjusting means individually or jointly withsaid shaft arranged laterally on said machine frame preferably near saidhand wheel, the adjusting means comprising screw spindles, worm gearsadapted to transmit the movement of said common shaft to said screwspindles, claw clutches between said worm gears and said shaft, and asystem of levers adapted .to engage and disengage said claw clutch toconnect said worm gears with said shaft.

. I FRITZ UNGERER.

separately and independently of the means for

